Overview
Insider selling was concentrated in healthcare and industrials, while notable buying activity appeared in utilities, consumer discretionary, and select healthcare names.
High Signal
ALK — CEO AND PRESIDENT (Benito Minicucci) purchased $1.00M (first recorded purchase). Dip Buy: the stock was down 11% in the previous 4 weeks. 2 other insiders also purchased in the last 30 days.
AAT — Executive Chairman (Ernest S Rady) bought $1.14M (first recorded purchase) (indirect — By ERT).
Notable Buys
GWRS — Insider accumulation in regulated water utilities.
- Levine Jonathan L purchased $5.77M (first purchase of GWRS) (indirect — By Levine Investments Limited Partnership). This was a large block buy, and 1 other insider also purchased the stock in the last 30 days.
- Cohn Andrew M. bought $1.23M (first purchase of GWRS). Both purchases were reported as indirect or direct, with the larger block through a limited partnership.
- Levine Jonathan L purchased $5.77M (first purchase of GWRS) (indirect — By Levine Investments Limited Partnership). This was a large block buy, and 1 other insider also purchased the stock in the last 30 days.
- Cohn Andrew M. bought $1.23M (first purchase of GWRS). Both purchases were reported as indirect or direct, with the larger block through a limited partnership.
ELAN — Insider buying in specialty drug manufacturing.
- Kurzius Lawrence Erik purchased $936K (first purchase of ELAN). This buy increased holdings by 27%.
- Kurzius Lawrence Erik purchased $936K (first purchase of ELAN). This buy increased holdings by 27%.
MED — Ongoing accumulation in personal services.
- Kiai Parsa purchased $833K across 4 filings between 2026-08-19 and 2026-08-20 (first purchases of MED) (indirect — Notes). The purchases were made through investment partnerships, with a total of 71,487 shares acquired.
- Kiai Parsa purchased $833K across 4 filings between 2026-08-19 and 2026-08-20 (first purchases of MED) (indirect — Notes). The purchases were made through investment partnerships, with a total of 71,487 shares acquired.
Notable Sells
ILMN — Large, repeated sales by a single investment manager (indirect — See Footnotes).
- Meister Keith A. sold a total of $120.6M across 20 filings between 2026-08-19 and 2026-08-21 (largest sale out of 20). The sales were made on behalf of Corvex-managed funds, with each transaction reported as indirect. The holding percentage change per leg was modest, but the aggregate dollar value is significant.
- Meister Keith A. sold a total of $120.6M across 20 filings between 2026-08-19 and 2026-08-21 (largest sale out of 20). The sales were made on behalf of Corvex-managed funds, with each transaction reported as indirect. The holding percentage change per leg was modest, but the aggregate dollar value is significant.
MANE — Substantial sales in biotechnology (indirect — See footnotes).
- Llc Montanova Capital sold $80.7M across 2 filings on 2026-08-19 (largest sale out of 2). Both transactions were reported as indirect.
- Llc Montanova Capital sold $80.7M across 2 filings on 2026-08-19 (largest sale out of 2). Both transactions were reported as indirect.
MEDP — Multiple insiders selling in professional services.
- President & CEO (Troendle August J.) sold $26.5M across 2 filings between 2026-08-19 and 2026-08-20 (largest sale out of 2).
- Fred B Davenport Jr sold $4.41M (largest sale out of 1).
- Carley Brian T sold $3.04M (largest sale out of 1). The CEO's sales were executed via limit orders during open window periods.
- President & CEO (Troendle August J.) sold $26.5M across 2 filings between 2026-08-19 and 2026-08-20 (largest sale out of 2).
- Fred B Davenport Jr sold $4.41M (largest sale out of 1).
- Carley Brian T sold $3.04M (largest sale out of 1). The CEO's sales were executed via limit orders during open window periods.
ITW — Repeated sales in technology hardware.
- Ernest Scott Santi sold $11.8M across 3 filings on 2026-08-19 (largest sale out of 3).
- Ernest Scott Santi sold $11.8M across 3 filings on 2026-08-19 (largest sale out of 3).
ROIV — Ongoing sales in pharmaceuticals.
- President & CIO (Sukhatme Mayukh) sold $12.1M across 3 filings between 2026-08-19 and 2026-08-21 (largest sale out of 3).
- President & CIO (Sukhatme Mayukh) sold $12.1M across 3 filings between 2026-08-19 and 2026-08-21 (largest sale out of 3).
Patterns
- Healthcare and biotech sectors saw the largest dollar-value insider sales, with ILMN and MANE leading.
- Utilities and consumer discretionary sectors attracted notable insider buying, with GWRS and MED both seeing multi-million dollar purchases.
- Several large sales were reported as indirect, often through investment funds or partnerships.
Close
Top buy tickers by $ value: GWRS $7.0M, AAT $1.14M, ALK $1.00M.
Top sell tickers by $ value: ILMN $120.6M, MANE $80.7M, MEDP $33.9M.